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Finding the Fourth Proportional to 101,851.70, 152,718.33 and 68,156.22

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Solution

The fourth proportional to 101,851.70, 152,718.33 and 68,156.22 is: 102,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,851.70 : 152,718.33 = 68,156.22 : x
  2. Step 2: Convert to fraction form
    101,851.70/152,718.33 = 68,156.22/x
  3. Step 3: Cross multiply
    101,851.70x = 152,718.33 × 68,156.22
  4. Step 4: Simplify right side
    101,851.70x = 10,408,704,097.51
  5. Step 5: Solve for x
    x = 10,408,704,097.51/101,851.70
  6. Step 6: Final answer
    x = 102,194.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.